Transferring Multi-Dimensional Quantum States and Preparing Quantum Networks in Cavity QED

Yang Yang, Zhen-Biao, Su +1 more

Zi-hong Chen, Gang Li, Feng‐Yang Zhang +1 more

Yusef Maleki

Zi-hong Chen, Zheng Xiao-Lan, Chang-Geng Liao

In this paper we propose a scheme for transferring quantum states and preparing quantum networks. Compared with the previous schemes, this scheme is more efficient, since three or four-dimensional quantum states can be transferred with a single step and information interchange of three-dimensional quantum states can be realized, which is a significant improvement. It is based on the resonant interaction of a three-mode cavity field with an atom. As a consequence, the interaction time is shortened greatly. Furthermore, we give some discussions about the feasibility of the scheme.

Zhen‐Biao Yang, Wan-Jun Su

An alternative scheme is proposed to transfer quantum states and prepare a quantum network in cavity QED. It is based on the interaction of a two-mode cavity field with a three-level ∨-type atom. In the scheme, the atom-cavity field interaction is resonant, thus the time required to complete the quantum state transfer process is greatly shortened, which is very important in view of decoherence. Moreover, the present scheme does not require one mode of the cavities to be initially prepared in one-photon state, thus it is more experimentally feasible than the previous ones.

苏孙庆 SU Sun-qing